Tuning control apparatus

Details Tuning control apparatus Tuning control apparatus

1983-01-26

1984-11-27

Witkowski, S. J.

Music

Instruments

84454, 84477R, 84478, G10G 702, G10H 144

Patent

active

044845065

ABSTRACT:
Basic frequency data is preliminarily stored in a ROM. Tuning data obtained from a tuning counter according to manual operation of a rotary switch, and basic frequency data out from the ROM are processed in a CPU to form modified frequency data, which is stored in a RAM. The modified frequency data stored in the RAM is selectively read out according to the operation of the keyboard, so that a tuned note sound is produced from a loudspeaker.

REFERENCES:
patent: 4281577 (1981-08-01), Middleton
patent: 4327623 (1982-05-01), Mochida et al.
patent: 4351212 (1982-09-01), Okamoto et al.

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